Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851641 | Electrical curling iron having a pair of interchangeably usable curling sections of different size and/or configuration | Dieter Liebenthal | 1989-07-25 |
| 4803341 | Cordless curling iron with separate electric heating station | Günter Helbig | 1989-02-07 |
| 4691095 | Hair roller heating device with thermomagnetic roller temperature control | Conrad Berghammer | 1987-09-01 |